Question

The stroma lamellae have both $PS I$ and $PS II$. The grana lamellae lack $PS II$ as well as $NADP$reductase enzyme.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (D)

If both assertion and reason are false

Answer 2

Thylakoid membranes possess photosynthetic pigments and coupling factors. They occur in specific groups called photosystems (previously quantasomes). There are two photosystems. The grana lamellae have both $PS I$ and $PS II$ and the stroma lamellae lack $PS II$ as well as $NADP$ reductase enzyme.